/*
 * Copyright (c) 2020 Giorgio Antonioli
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.fondesa.recyclerviewdivider

import androidx.recyclerview.widget.RecyclerView

/**
 * A [RuntimeException] thrown when the [RecyclerView.ItemDecoration] doesn't support the given [RecyclerView.LayoutManager].
 *
 * @param layoutManagerClass the unsupported [RecyclerView.LayoutManager].
 * @param suggestedBuilderClass the suggested builder class which can be used to support the given [RecyclerView.LayoutManager].
 */
class IllegalLayoutManagerException internal constructor(
    layoutManagerClass: Class<out RecyclerView.LayoutManager>,
    suggestedBuilderClass: Class<*>? = null
) : RuntimeException(messageOf(layoutManagerClass, suggestedBuilderClass))

private fun messageOf(
    layoutManagerClass: Class<out RecyclerView.LayoutManager>,
    suggestedBuilderClass: Class<*>?
): String = if (suggestedBuilderClass != null) {
    "Use a ${suggestedBuilderClass.simpleName} to handle dividers in a ${layoutManagerClass.simpleName}."
} else {
    "The layout manager ${layoutManagerClass.name} isn't supported."
}
